Marijuana Has Been Linked to Lower Risk of Bladder Cancer
![Marijuana Has Been Linked to Lower Risk of Bladder Cancer](https://www.knowcancer.com/wp-content/uploads/2013/05/health-102212-002-620x300.jpg)
A new study suggests that people who smoke marijuana have a much lower risk of developing bladder cancer than people who smoke cigarettes. A team of researchers from Kaiser Permanente compared the risk of bladder cancer in more than 80,000 …